Ductile Iron Lugged Wafer Butterfly Valve - GGG50, PN16, DN50 to DN600
Ductile Iron Lugged Wafer Soft Seated Butterfly Valve is designed for high-performance flow control in industrial applications. Featuring a A351-CF8M (SS316) disc, soft sealing (EPDM / PTFE), and PN16 pressure rating, this valve ensures excellent durability, corrosion resistance, and tight shut-off.
The lug-type design allows easy installation between flanges without nuts, making it ideal for piping systems requiring frequent maintenance. Suitable for water, air, chemicals, and mild corrosive fluids.
Key Features
• Body Material: Ductile Iron with epoxy coating
• Disc Material: ASTM A351-CF8M, CF8 (Stainless Steel 316, 304)
• Seat Material: NBR / EPDM / PTFE (soft sealing, bubble-tight shut-off)
• Design Standard: EN 593 / API 609
• Face to Face: EN 558-1 20 Series
• Pressure Rating: PN16 (16 bar)
• Temperature Range: -20°C to +150°C (depends on seat material)
• Operation: Lever, Gearbox, or Actuator (manual/automated)
Material List
| Valve Parts | Material |
|---|---|
| Body | Ductile Iron (GGG50, A536, A395) |
| Disc | DI, A351-CF8M, CF8 (SS316, SS304) |
| Seat | NBR / EPDM / PTFE (Optional) |
| Stem | Stainless Steel (SS416/SS304) |
| Shaft Seal | Nitrile (NBR) / Viton (FKM) |
| Coating | Epoxy Powder Coated |
Reference: EN 593 / API 609. Materials may vary by model and pressure rating. Contact us for confirmed material certificate.
Dimensions Table (PN16, Lug Type, EN558 Series 20)
| NPS | Face-to-Face (L) (mm) |
|---|---|
| 2″ | 43 |
| 2½″ | 46 |
| 3″ | 46 |
| 4″ | 52 |
| 5″ | 56 |
| 6″ | 56 |
| 8″ | 60 |
| 10″ | 68 |
| 12″ | 78 |
| 14″ | 92 |
| 16″ | 102 |
| 18″ | 114 |
| 20″ | 127 |
| 24″ | 154 |
Reference: EN 558-1 20 Series. Dimensions may vary by manufacturer. Contact us for confirmed drawing and quotation.
Applications
• Water Treatment Plants
• HVAC Systems
• Chemical & Petrochemical Industries
• Food & Beverage
• Fire Protection Systems
Why Choose Our Butterfly Valve?
• High Corrosion Resistance – Stainless steel disc for harsh environments.
• Zero Leakage – Soft seat ensures bubble-tight sealing.
• Easy Installation & Maintenance – Lug-type design.
• Competitive Pricing & Long Service Life
Related Butterfly Valve Pages
• Butterfly Valve - Butterfly Valve Series Overview
• Centerline Lug-Type Butterfly Valve - Carbon Steel, Bronze Disc, 150LB, Soft Seated
• DIN PN10-PN25 Wafer & Lug Butterfly Valve - Triple Offset
• Industrial Butterfly Valve - API609 Triple Offset Butterfly Valve
